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404125827 = 3731620777
BaseRepresentation
bin11000000101100…
…111100010000011
31001011102201102020
4120011213202003
51311424011302
6104033452523
713005004260
oct3005474203
91034381366
10404125827
11198133796
12b3411143
1365957511
143b95a267
152572aebc
hex18167883

404125827 has 16 divisors (see below), whose sum is σ = 635676672. Its totient is φ = 223479360.

The previous prime is 404125789. The next prime is 404125831. The reversal of 404125827 is 728521404.

It is a de Polignac number, because none of the positive numbers 2k-404125827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404125327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309738 + ... + 311039.

It is an arithmetic number, because the mean of its divisors is an integer number (39729792).

Almost surely, 2404125827 is an apocalyptic number.

404125827 is a deficient number, since it is larger than the sum of its proper divisors (231550845).

404125827 is a wasteful number, since it uses less digits than its factorization.

404125827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620818.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 404125827 is about 20102.8810621761. The cubic root of 404125827 is about 739.3309188416.

The spelling of 404125827 in words is "four hundred four million, one hundred twenty-five thousand, eight hundred twenty-seven".

Divisors: 1 3 7 21 31 93 217 651 620777 1862331 4345439 13036317 19244087 57732261 134708609 404125827